811951120

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{317}}^2$

素因数の和:748

約数の個数: 60

約数和(自身を含む): 1912510404

約数和(自身を除く): 1100559284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 317, 404, 505, 634, 808, 1010, 1268, 1585, 1616, 2020, 2536, 3170, 4040, 5072, 6340, 8080, 12680, 25360, 32017, 64034, 100489, 128068, 160085, 200978, 256136, 320170, 401956, 502445, 512272, 640340, 803912, 1004890, 1280680, 1607824, 2009780, 2561360, 4019560, 8039120, 10149389, 20298778, 40597556, 50746945, 81195112, 101493890, 162390224, 202987780, 405975560, 811951120]

約数ペア:

[(1, 811951120), (2, 405975560), (4, 202987780), (5, 162390224), (8, 101493890), (10, 81195112), (16, 50746945), (20, 40597556), (40, 20298778), (80, 10149389), (101, 8039120), (202, 4019560), (317, 2561360), (404, 2009780), (505, 1607824), (634, 1280680), (808, 1004890), (1010, 803912), (1268, 640340), (1585, 512272), (1616, 502445), (2020, 401956), (2536, 320170), (3170, 256136), (4040, 200978), (5072, 160085), (6340, 128068), (8080, 100489), (12680, 64034), (25360, 32017)]